Quantitative packaging machine

Abstract

The invention relates to the technical field of material weighing equipment, and discloses a quantitative packaging machine which comprises a support, a hopper is arranged in an inner cavity of the support, the support and the hopper are in transmission connection through a piezoelectric module fixedly connected to the top of the outer surface of the hopper in a sleeving mode, an electromagnetic valve is fixedly installed at the bottom end of the hopper, and a feeding mechanism is arranged on one side of the top end of the support. An output shaft is arranged on the other side of the top end of the support and a driving motor fixedly connected with the feeding mechanism, the feeding mechanism conveys materials into the hopper to keep the weight of the materials larger than the weight of quantitative packaging of the materials, and then the materials discharged and conveyed by the electromagnetic valve are determined by calculating the total weight of the materials in the hopper and the remaining materials in the materials. According to the quantitative packaging machine, the hopper and the decrement weighing mode of the hopper are arranged, the materials discharged and conveyed by the electromagnetic valve are determined by calculating the total weight of the materials in the hopper and the remaining materials in the hopper, and then the material weighing accuracy of the quantitative packaging machine is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of material weighing equipment, and in particular to a quantitative packaging machine. Background Art

[0002] The quantitative packaging machine is an integrated industrial production equipment that combines material transportation, weighing and packaging, which greatly optimizes the factory's production model and effectively improves its packaging efficiency for materials. Its highly automated and intelligent production model has become an important pillar of the material packaging industry. In the quantitative packaging machine, the weighing of materials is its core component. During the simultaneous material conveying and weighing process, the existing quantitative packaging machine will, on the one hand, cause the weighing result to be smaller due to the impact of the materials, and on the other hand, a small amount of materials is in a suspended state and is not weighed, which leads to a larger weighing result of the materials. As a result, it is difficult for the quantitative packaging machine to control the accuracy of the material weight, the weight deviation of the weighed and packaged materials is large, and the stability and reliability are low.

[0003] Therefore, there is an urgent need for a weighing mechanism for quantitative packaging of materials to solve the weight deviation problem existing in the above-mentioned existing quantitative packaging machines when weighing and packaging materials. Summary of the invention

[0004] The present application proposes a quantitative packaging machine, which has the advantages of high weighing accuracy for materials, is not easily affected by other factors during the weighing process, and has high stability and reliability. It solves the problem that in the existing weighing type weighing, during the process of synchronous material transportation and weighing, on the one hand, the weighing result is too small due to the impact of the material, and on the other hand, a small amount of material is in a suspended state and is not weighed, resulting in a large weighing result, which makes it difficult for the quantitative packaging machine to control the weight accuracy of the material and leads to a large deviation in the weight of the quantitatively packaged material.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a quantitative packaging machine, comprising a bracket that can be fixedly installed on the quantitative packaging machine by bolts, a hopper is provided in the inner cavity of the bracket, and the bracket and the hopper are transmission-connected by a piezoelectric module fixedly sleeved on the top of the outer surface of the hopper, and then when the mass of the hopper changes, a corresponding pressure change signal can be applied to the piezoelectric module, and the pressure change signal can be converted into an electrical signal and transmitted to the control system to obtain the mass of the hopper, and an electromagnetic valve for discharging the material in the hopper is fixedly installed at the bottom end of the hopper, and one side of the top end of the bracket is provided with A feeding mechanism for conveying materials into the inner cavity of the hopper, the other side of the top end of the bracket is provided with a driving motor with an output shaft fixedly connected to the feeding mechanism, and the driving motor can drive the feeding mechanism to move so as to convey the materials into the inner cavity of the hopper; a feedback electrical connection is formed between the piezoelectric module, the solenoid valve, the driving motor and the control system, and the feeding mechanism conveys materials into the hopper to keep the weight of the materials therein greater than the weight of the quantitative packaging of the materials, and then the materials discharged by the solenoid valve are determined by calculating the total weight of the materials in the hopper and the remaining materials therein, so as to realize the quantitative weighing of the materials by the quantitative packaging machine; Among them, the method of weight reduction can effectively avoid the problem that during the simultaneous material transportation and weighing process, the weighing result will be smaller due to the impact of the material, and the weighing result will be larger due to a small amount of material being suspended and not weighed. This effectively improves the accuracy of the quantitative packaging machine in weighing materials.

[0006] Furthermore, when the material discharged from the hopper gradually approaches the weight of the quantitative package, the solenoid valve is gradually closed through the control system to continuously reduce the flow of the material, until the solenoid valve is completely closed when the discharged material is equal to the weight of the quantitative package.

[0007] Furthermore, the bottom of the hopper is configured as a funnel-shaped structure to ensure that the material in the hopper flows out smoothly when the solenoid valve is opened, and it is not easy for the piezoelectric module to cause deviation in the detection of the hopper weight due to clogging.

[0008] Furthermore, it also includes a vibration component, which includes a connecting rod movably sleeved on one side of the inner part of the bracket, an elastic member is provided at the bottom of the outer surface of the connecting rod, and the connecting rod and the bottom end of the bracket are connected by transmission through the elastic member, and an impact ball is fixedly installed on one side of the bottom of the outer surface of the connecting rod, and a sliding ball is fixedly installed on the top of the connecting rod, and the outer surface of the sliding ball is in contact with the outer surface of a sliding track with an elliptical structure fixedly installed on the output shaft of the driving motor, and then when the driving motor drives the feeding mechanism to operate, the connecting rod can be forced to move up and down under the transmission action of the sliding track and the sliding ball, and drive the impact ball to knock the outer surface of the hopper, so that the materials in the hopper are more "compact", further improving its accuracy in weighing materials.

[0009] Furthermore, a rubber pad is provided on one side of the outer surface of the hopper and at a position corresponding to the impact ball, thereby effectively reducing the impact damage caused by the impact ball when hitting the hopper. At the same time, corresponding vibration can be generated to "compact" the material in the hopper.

[0010] The beneficial effects of the present invention are as follows: The quantitative packaging machine provided in the present application has a setting for a hopper and its decremental weighing method. The material discharged by the solenoid valve is determined by calculating the total weight of the material in the hopper and the remaining material therein, so as to realize the quantitative weighing of the material by the quantitative packaging machine. This can effectively avoid the problem that, during the simultaneous material transportation and weighing process, the weighing result is too small due to the impact of the material on the one hand, and the weighing result is too large due to a small amount of material being suspended and not weighed on the other hand, thereby effectively improving the accuracy of the quantitative packaging machine in weighing the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front view of the structure of the present invention; Figure 3 is a side sectional view of the structure of the present invention; Figure 4 The structure of the present invention Figure 1 A magnified schematic diagram of point A; Figure 5 It is a back view of the structure of the present invention; Figure 6 It is a system diagram of the structure of the present invention.

[0012] In the figure: 1- bracket, 2- hopper, 3- piezoelectric module, 4- solenoid valve, 5- feeding mechanism, 6- driving motor, 7- vibration assembly, 8- connecting rod, 9- impact ball, 10- elastic member, 11- sliding ball, 12- sliding track, 13- rubber pad. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] like Figure 1 , Figure 2 As shown, a quantitative packaging machine comprises a bracket 1 which can be fixedly installed on the quantitative packaging machine by bolts, a hopper 2 is arranged in the inner cavity of the bracket 1, and the bracket 1 and the hopper 2 are transmission-connected by a piezoelectric module 3 fixedly sleeved on the top of the outer surface of the hopper 2, and then when the mass of the hopper 2 changes, a corresponding pressure change signal can be applied to the piezoelectric module 3, and the pressure change signal can be converted into an electrical signal and transmitted to the control system to obtain the mass of the hopper 2, and a solenoid valve 4 for discharging the material in the hopper 2 is fixedly installed at the bottom end of the hopper 2, a feeding mechanism 5 for conveying the material into the inner cavity of the hopper 2 is arranged on one side of the top end of the bracket 1, and a driving motor 6 with an output shaft fixedly connected to the feeding mechanism 5 is arranged on the other side of the top end of the bracket 1, and then the feeding mechanism 5 can be driven by the driving motor 6 to move to convey the material into the inner cavity of the hopper 2; like Figure 5 As shown, a feedback electrical connection is formed between the piezoelectric module 3, the solenoid valve 4, the drive motor 6 and the control system, and the feeding mechanism 5 conveys the material into the hopper 2 to keep the weight of the material therein greater than the weight of the quantitative packaging of the material, and then the material discharged by the solenoid valve 4 is determined by calculating the total weight of the material in the hopper 2 and the remaining material therein, so as to realize the quantitative weighing of the material by the quantitative packaging machine; Among them, the method of weight reduction can effectively avoid the problem that during the simultaneous material transportation and weighing process, the weighing result will be smaller due to the impact of the material, and the weighing result will be larger due to a small amount of material being suspended and not weighed. This effectively improves the accuracy of the quantitative packaging machine in weighing materials.

[0015] In this technical solution, when the material discharged from the hopper 2 gradually approaches the weight of the quantitative package, the solenoid valve 4 is gradually closed through the control system to continuously reduce the flow of material, until the solenoid valve 4 is completely closed when the discharged material is equal to the weight of the quantitative package.

[0016] In this technical solution, the bottom of the hopper 2 is set to a funnel-shaped structure to ensure that the material in the hopper 2 flows out smoothly when the solenoid valve 4 is opened, and it is not easy for the piezoelectric module 3 to cause deviation in the detection of the weight of the hopper 2 due to clogging.

[0017] like Figure 2 , Figure 3 as well as Figure 4 As shown, in the present technical scheme, a vibration component 7 is also included, and the vibration component 7 includes a connecting rod 8 movably sleeved on one side of the inner part of the bracket 1, and an elastic member 10 is provided at the bottom of the outer surface of the connecting rod 8, and the connecting rod 8 is connected to the bottom end of the bracket 1 through the elastic member 10, and an impact ball 9 is fixedly installed on one side of the bottom of the outer surface of the connecting rod 8, and a sliding ball 11 is fixedly installed on the top of the connecting rod 8, and the outer surface of the sliding ball 11 is in contact with the outer surface of a sliding track 12 with an elliptical structure fixedly installed on the output shaft of the driving motor 6, and then when the driving motor 6 drives the feeding mechanism 5 to move, the connecting rod 8 can be forced to move up and down under the transmission action of the sliding track 12 and the sliding ball 11, and drive the impact ball 9 to knock the outer surface of the hopper 2, so that the materials in the hopper 2 are more "compact", further improving its accuracy in weighing the materials.

[0018] like Figure 4 As shown, in the present technical solution, a rubber pad 13 is provided on one side of the outer surface of the hopper 2 and at a position corresponding to the impact ball 9, thereby effectively reducing the impact damage caused by the impact ball 9 when hitting the hopper 2. At the same time, corresponding vibration can be generated to "compact" the material in the hopper 2.

[0019] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quantitative packaging machine, comprising a support (1), characterized in that: A hopper (2) is provided in the inner cavity of the support (1), and the support (1) and the hopper (2) are transmission-connected via a piezoelectric module (3) fixedly sleeved on the top of the outer surface of the hopper (2); a solenoid valve (4) is fixedly mounted on the bottom end of the hopper (2); a feeding mechanism (5) is provided on one side of the top end of the support (1), and a driving motor (6) having an output shaft fixedly connected to the feeding mechanism (5) is provided on the other side of the top end of the support (1); A feedback electrical connection is formed between the piezoelectric module (3), the solenoid valve (4), the drive motor (6) and the control system, and the feeding mechanism (5) feeds material into the hopper (2) to keep the weight of the material therein greater than the weight of the quantitative packaging of the material, and then the material discharged by the solenoid valve (4) is determined by calculating the total weight of the material in the hopper (2) and the remaining material therein.

2. The quantitative packaging machine according to claim 1, characterized in that: When the material discharged from the hopper (2) gradually approaches the weight of the quantitative package, the solenoid valve (4) is gradually closed through the control system to continuously reduce the flow rate of the material, until the solenoid valve (4) is completely closed when the material discharged is equal to the weight of the quantitative package.

3. The quantitative packaging machine according to claim 2, characterized in that: The bottom of the hopper (2) is configured as a funnel-shaped structure to ensure that the material in the hopper (2) flows out smoothly when the solenoid valve (4) is opened, and it is not easy for the piezoelectric module (3) to deviate from the detection of the weight of the hopper (2) due to clogging.

4. The quantitative packaging machine according to claim 3, further comprising a vibration component (7), characterized in that: The vibration assembly (7) comprises a connecting rod (8) movably sleeved on one side of the interior of the bracket (1); an elastic member (10) is provided at the bottom of the outer surface of the connecting rod (8), and the connecting rod (8) and the bottom end of the bracket (1) are connected in a transmission manner via the elastic member (10); an impact ball (9) is fixedly mounted on one side of the bottom of the outer surface of the connecting rod (8); a sliding ball (11) is fixedly mounted on the top of the connecting rod (8); and the outer surface of the sliding ball (11) contacts the outer surface of a sliding track (12) in an elliptical structure fixedly mounted on the output shaft of the drive motor (6).

5. The quantitative packaging machine according to claim 4, characterized in that: A rubber pad (13) is provided on one side of the outer surface of the hopper (2) at a position corresponding to the impact ball (9).

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